Cucurbitaceae family snake gourd (Trichosanthes anguina L.), (
While the use of pesticides has resulted in increased food production and decreased insect-borne diseases, it has adversely affected the environment, particularly the bee population and the water quality. The discovery relates (i) to less pesticide production, and thus saves energy and time, (ii) to protection of water bodies and streams, the aquatics therein, and the aquatics-fed wildlife, (iii) to the bee population against harmful pesticide use, and (iv) to the yield of healthy vine fruits. Further, as the said vine leaf remains unaffected by major fungal, bacterial, and viral diseases, and by aphids, insects, and beetles (Cerotoma trifurcata) due to the leaf and fruit aroma, the leaf and fruit oil/extract spray will drive away the same nuisance from these targeted vines and other vines and fruit trees.
The USA uses annually more than one-half billion kg (more than one billion lbs.) of pesticides. The fruit and vegetable growers use the lions share of pesticides per acre. The following table is an estimate of manufacturing energy inputs for various pesticides in BTUs/lb, typical application rates in lbs/A, and energy per unit area of use in BTUs/A on an active ingredient basis (https://farm-energy.extension.org/energy-use-and-efficiency-in-pest-control-including-pesticide-production-use-and-management-options/).
Active ingredient in sevin is carbaryl which belongs to a class of insecticides called carbamates. Carbaryl stays on the surface of plants and soil. Carbaryl affects nervous-system, reproductive systems, and can cause cancer (https://oehha.ca.gov/media/downloads/pesticides/fact-sheet/hgasevingamarch2016final.pdf). Runoff can mix it from plant surface and soil surface to streams and groundwater. Sevin is banned in the United Kingdom, Denmark, Australia, Germany, Sweden, Iran and Angola. It is carcinogenic. Its continuous inhalation can cause pneumoconiosis which is associated with hardening of the air sacs in the lungs caused from inflammation. Complicated pneumoconiosis can cause heart failure, lung cancer, respiratory failure. Sevin dust can cause fetal abnormalities like cardio and pulmonary, nervous system development, spontaneous abortion, inattention, distractibility, and poor working memory in children and a host of other difficulties (https://foodtruthfreedom.wordpress.com/2013/01/28/sevin-dust-illegal-in-many-countries-top-seller-in-u-s/).
Cypermethrin is a synthetic pyrethroid, a chemicals that kill insects, including mosquitoes. It is highly toxic to aquatic wildlife, very highly toxic to honeybees (not to be applied on blooming plants), acutely toxic to humans and other mammals (http://ipm.ucanr.edu/TOOLS/PNAI/pnaishow.php?id=118#EXAMPLE)
Malathion is an organophosphate insecticide commonly used to control mosquitoes and a variety of fruit, vegetable, and shrub insects Because pesticide products are inherently toxic, no pesticide exposure is risk free. Short- to long-term exposures to high levels of malathion can cause headaches, nausea, dizziness, weakness, cramps, diarrhea, excessive sweating, blurred vision and increased heart rate, skin rash (https://www.health.ny.gov/publications/2740/#:˜:text=Short%2Dterm%20exposures%20to%20 high, vision%20and%20increased%20heart%20rate).
Diazinon is an organophosphorus pesticide used to control pest insects in soil and on fruit and vegetable field crops. Diazinon exposure from ingestion, skin contact, or inhalation can result in watery eyes, runny nose, drooling, loss of appetite, coughing, urination, diarrhea, stomach pain, and vomiting. Larger exposures result in head and body tremors, muscle spasms or stiffness, muscle weakness or paralysis, rapid heart rate, difficulty breathing, seizures, convulsions, or coma (http://npic.orst.edu/factsheets/Diazgen.html#:˜text=Diazinon%20exposure%2C%20whether%2 0from%20ingestion.%2C%20stomach%20pain%2C%20and%20vomiting).
Neonicotinoids are popularly used in agricultural and commercial ornamental production to guard against a wide range of insect pests. In 2014, the European Food Safety Commission (EFSA) found that the neonicotinoid pesticides (acetamiprid and imidacloprid) cause bee deaths and harmful to humans. The normal development and function of the nervous system in children is obstructed by Acetamiprid (ACE) and imidacloprid (IMI). These damage brain structures and functions associated with learning and memory (https://waterskraus.com/neonicotinoid-pesticides-people-risk/).
These pesticides are used in growing pumpkin, squash, and beans as mentioned below. Some recommend these pesticides for use in extreme cases.
Khan and Jehangir (2000) discuss the efficacy of Sevin, and Hasan et al. (2011) discuss the efficacy of Malathion in killing pumpkin beetles. UC Pest Management Guidelines recommend neonicitinoid class dinotefuran lambda cyhalothrin, esfenvelerate, and pyrethrin for squash bugs (http://ipm.ocanr.edu/PMG/r116301111.html). Pumpkin and squash bugs make holes in leaves, and Hyacinth (Dolichos Lablab Purpureus) bug makes holes in leaves and the beans. Also, aphids attack these plants. Aphids suck sap from various plants, and they grow to build colonies. Smart Gardener suggested remedies are pyrethrum and Bacillus thuringiensis (Bt) for extreme cases (https://www.smartgardner.com/plants/6865-bean-specialty-hyacinth-lablab-purpureus/pests/538-aphidaFIG). Gill and Raine (2014) reports that sevin, malathion, diazinon, and neonicotinoids (neonics) are toxic for honeybees. Stockpoole (2017) discusses pesticides accumulation in streams and water bodies from where they can enter aquatic organisms, making them risky for human consumption.
In 2019, the USA produced 6.9 million cwt (cwt stands for hundred weight=total # of lbs./100) squash that had a value of $149 million. Out of planting in 45,000 acres, 43,500 acres were harvested. In 2016, the squash yield was 1,615 cwt per acre. California is the leading state in squash production. The state is followed by Florida, Georgia, and Michigan. The United States annually imports 300,000 MT (metric ton−2,000 lbs.=907.18 kg) of squash In In 2020, squash imports rose to $507 million. Mexico is a 93.2 percent supplier of the squash imports to the United States. (https:www.agmrc.org/commodities-products/vegetables/squash#:˜:text=Squash%20had%20an%20averave%20of,dense%20orange %20or%20yellow%20flesh.).
Pumpkin and squash bugs skeletonize the tender plant leaves as shown in
For nonuniformity of interposing the snake guard plant among pumpkin plants, it could not be proved if vine borers, the creatures that burrow deep into pumpkin vines and suck away their moisture, could be repelled by the snake guard vine extract/juice.
Hyacinth beans grow in purple, red, and white colors. Their pests are longtail skipper caterpillars, Japanese beetles. An aphid-attacked bean plants image is shown in
The applicant, a physics professor and an avid gardener and a researcher discovered that only snake gourd vines remain unaffected by pests while pumpkin and bean vines are affected as point out above. He got gid of the problem of pests with pumpkin and bean vines by interposing the snake gourd vines in pumpkin and bean vines. Fresh, spotless, healthy pumpkin plants using snake gourd vines are shown in
Apart from the applicant reported discoveries, snake gourd fruits, seeds, leaves, and juice extracts contain carbohydrates, fats, proteins, fibers, vitamin A, vitamin B6, vitamin C, vitamin E, minerals, phenolics and cucurbitacins (Bharat, 2022). Its medicinal effects promote weight loss, heart health, immunity. It has anti-fungal, anti-dandruff, and scalp nourishing effects.
The applicant, a physics professor, has maintained his gardening hobby from his boyhood days. He produces different kinds of tropical fruits and vegetables. In his home garden, he finds that while other vines are attacked with pests, snake gourd vines are not. The distinction between the snake gourd and other vines lies in the snake gourd's intense aroma. Their leaves remain spotless. Tiny vines do not have the aroma. As they grow about 45 cm, they start giving out the aroma. Growing pumpkin, squash, and beans became problematic. He thought of interposing snake gourd plants anomg pumpkin, squash, and flat bean vines. The vines of other plants got mixed with the snake gourd vines, although not uniformly. To his surprise, he found the leaf-eating and the fruit-eating pests were gone.
The stark difference between the snake gourd vine and other fruit vines is the intense aroma of snake gourd leaves and fruits. Since the snake gourd is grown in summer time, snake gourd leaves and fruits extracts/oils or a synthetic product having the same aroma can be commercially manufactured for uniformly spraying on the pumpkin, squash, and bean vines to drive away pests. Further, the aromanic product can be tested on other fruit vines, fruit and vegetable plants, and fruit trees which bloom in winter or other seasons.
The discovery is using snake gourd fruit plant as the replacement of pesticides for at least pumpkin, squash, and bean plants, and expecting so for some other fruit vines, plants, and trees throughout the year if the plant extract/oil is used. The invention does away with chemical pesticides that are harmful for bees and the environment.
The gist of this invention is that snake gourd leaves and fruits extract/oil or a synthetically prepared chemical having the same intense smell as the snake gourd leaves and fruits can be used to drive away pests, and thus do the work as pesticide. This plant-based pesticide is safe to use without any problem of dermal contact, inhalation, or oral ingestion. This vine fruit has multifarious benefits for humans.
About 60 pests-repellant plants are mentioned in https://en.wikipedia.org/wiki/List_of_pest-repelling_plants. Snake gourd is not there.
The accompanying illustrations show typical specimens of the vegetative growth, flowers, and variety in colors and sizes as true as reasonably possible. Also, the illustrations show the pesticide uses and water resources contamination.
Latin name of the plant claimed: Trichosanthes anguina L
Variety: Trichosanthes cucumerina var. anguina (L.) Haines—cultivated variant
The plants phenotype is determined by both their genomic makeup (genotype) and environmental factors with variations in environmental, climatic, and cultural conditions, as it has not been tested under all possible environmental conditions.
Snake gourd, (Trichosanthes cucumerina), also known as serpent gourd, rapid-growing fruit vine belonging to the gourd family (Cucurbitaceae);
Scientific Classification: Kingdom: Plantae; Division: Magnoliophyta; Class: Mangnoliopsida; Order: Curcubitales; Family: Curcubitaceae; Genus: Trichosanthes; Species: Cucumerina;
Regional Names: Trichosanthes cucumerina is known as Chicinga in Bengali, Chichinda or Padwal in Hindi, Potlakaaya in Telugu, Pudalankaai in Tamil and Padavalanga in Malayalam, potlakaaya in Telugu, pudalankaai in Tamil, aduvalakaay in Indias Karnataks state, padavalanga, in Malayalam, Galartori in Punjabi, padavali in Gujarathi, Chachinda in Hindi; as serpent vegétal in France, Schlangengurke in Germany, Karasu-uri-zoku in Japan, Patola in Srilanka, Zucchetta cinese in Italy, Abobora-serpente in Portugal, Kaarmekurkku in Finland, Buap nguu Ma not in Thailand, Yilan kabagi in Turkey, Calabaza anguina in Spain (Devi, 2017)
Taxonomy: The plants family, predominantly distributed in the tropics, commonly known as melons, gourds or cucurbits that includes cucumbers, squashes (including pumpkins), luffas, melons (including watermelons); one of the most genetically diverse groups of food plant in the plant kingdom; Trichosanthes (100 species), Cayaponia (60 species), Momordica (47 species), Gurania (40 species), Sicyos (40 species) and Cucumis (34 species) major major genera under this family (Devi, 2017).
Biostatistics:0 Two cultivated species Trichosanthes anguina L. and Trichosanthes dioica Roxb.; Important wild species Trichosanthes bracteata (Lam.) Voigt. (Syn. Trichosanthes palmata Roxb.), largely variable Trichosanthes cucumerina L., Trichosanthes lobata, Trichosanthes wallichiana (syn. Trichosanthes multiloba Clarke), Trichosanthes nervifolia L., Trichosanthes cordata Roxb., Trichosanthes japonica and Trichosanthes shikokiana; botanical name Trichosanthes cucumerina L., most common is Trichosanthes anguina L. (Devi, 2017).
Cytology: Trichosanthes chromosomes, n=11 and 2n=22; Trichosanthes bracteate and Trichosanthes cucumeroides n=22 and 2n=44. Tetraploids (2n=44) and hexaploids (2n=66) in Trichosanthes palmate. Induced polyploids in Trichosanthes anguina quadrivalents, trivalents, bivalents and univalent; Only Trichosanthes anguina and Trichosanthes cucumerina monoecious, all others dioecious. Species with 2n-=22 chromosomes metacentric to submetacentric medium-sized (5.74 mm to 1.48 mm) chromosomes; only three pairs of chromosomes with secondary constriction in Trichosanthes anguina and Trichosanthes cucumerina; XY sex chromosomes in Trichosanthes cucumeriodes and Trichosanthes japonica at meiosis and in Trichosanthes multiloba at metaphase. Trichosanthes anguina, Trichosanthes cucumerina and Trichosanthes lobata crossable among themselves with fertile hybrids indicating their close relationship (Devi, 2017).
Seeds: Imbedded in soft red pulp in ripe snake gourd, half-ellipsoid, somewhat compressed, undulate, hard, corrugated, about 1 cm long, about ¾ cm across, greyish-brown, black, sculptured, undulate (
Seedlings: Seeds planting about 1 m apart at depth about 2.5 cm in well-drained, humus-rich adequate moisture content soil with Ph 6.5-7.0 in sunny locations with at least 6 hrs direct sunlight; tiny and few or no fruits for lesser amount of sunlight; dicotyledonous seedlings with two embryonic leaves in about two weeks in temperature between 80° F. and 95° F. (27° C. to 35° C.); longer timing of weeks for seedlings in lower temperature. For temperatures nearing 100° F. and above, leaves get wilted in the scorching sun.
Plant: Monoecious annual, branchy, slender, green, disagreeable odor, stems up to 5 or 6 meters long, diameter of 5 mm, possibly largest number of fruits producer among all Cucurbitaceae; vigorous growth; climb up vertical supports using tendrils and twining stems to sprawl over its top or the trellises (
Leaves: Base broadly heart-shaped or palmately broad 3, 5, 6, or 7-lobed leaves rounded or obtuse appear, rounded outline, 8 to 12 cm long and broad, sinuses broad or narrow and rounded (
Tendrils: Forked tendrils appearance before the characteristic odor at about 1 m high (
Manure: Periodic application of composted vegetable matter and 13-13-13.
Flowers: (
Pollination: Insects pollinated; manual pollination by snapping off the male flowers and gently rubbing them on the female ones to transfer the pollen; female flower wilting after successful pollination; lump growth on the stem begins to grow; appearances of baby snake gourds; rapid growth (
Fruit: Oddly shaped fruits—very slender, long, cylindrical berry, often twisted, green or white when immature, pickable at about 30 cm (
Edible: Young whole fruits cut into pieces for cooking; mature fruits' red, soft sweet testing pulp eaten as a tomato substitute in African countries; bright red pulp around mature seeds extracted for tomato-like cooking.
Pests: The described snake gourds herein resistant to powdery mildew, and repellent to leaf beetles, aphids, snails, slugs, and caterpillars.
Snake Gourd Nutritional Content:
The snake gourd nutrition facts for a 100 g serving are as follows: Calories 86.2 kcal, Macronutrients: Total Fat 3.9 g, Saturated Fat 0.5 g. Total carbohydrate 12.5 g, Dietary Fiber 0.6 g, Protein 2.0 g, Cholesterol 0.0 mg, Sodium 33.0 mg, Potassium 359.1 mg, Vitamins: Vitamin A 9.8%, Vitamin B6 11.3%, Vitamin C 30.5%, Vitamin E 1.1%, Minerals: Calcium 5.1% Magnesium 6.7%, Phosphorus 5.0%, Zinc 7.2%, Iron 5.7%, Manganese 12.5%, and Iodine 5.9% (Bharat, 2022).
Snake Gourd Health Benefits
Accelerates weight loss, augments heart function, detoxifies kidneys, enhances digestive system, strengthens respiratory processes, complements ketogenic diet, soothes depression and anxiety, resolves acid reflux, mitigates Polycystic ovary syndrome (PCOS); seed remedies hypertension, cures diarrhea, manages diabetes symptoms; snake gourd naturally moisturizes skin, combats skin infections, promotes hair growth, tackles excessive dandruff, snake gourd hair gel; in Ayurveda: snake gourd juice baffles fevers, fights jaundice, remedies heart ailments, treats alopecia, recovers joint illnesses, uplifts immunity, regulates thyroid, alleviates insomnia (Bharat, 2022)
National Pesticide Use
The USA uses annually more than one-half billion kg (more than one billion lbs.) of pesticides. The fruit and vegetable growers use the lions share of pesticides per acre (Kiely et al., 2004). In 2012, the US pesticide expenses at the producer level were nearly $9 billion (Pesticides Industry Sales and Usage 2008-2012 Market Estimates in https://www.epa.gov/sites/default/files/2017-01/documents/pesticides-industry-sales-usage-2016_0.pdf). Mechanization, fertilizers, and pesticides involves the primary costs in U.S. food crop production. The inclusion of the irrigation cost raises the total costs 2-3 times higher. When irrigation is employed, the cost is 2 to 3 times the cost of all the other inputs in U.S. food crop production.
Table 2 shows the expenditures on pesticide uses year-wise for two decades ending in 2001, and
Snake Gourd Extracts/Oils Pesticides Replacement
Snake gourd effective repellant for pumpkin and squash bugs (pictured in ALMANAC), hyacinth bean bugs and aphids Bean|Diseases and Pests, Description, Uses, Propagation (psu.edu) (Bean|Diseases and Pests, Description, Uses, Propagation (psu.edu)); snake gourd extracts/oils pesticides replacement for sevin, malathion, diazinon, and neonicotinoids (Neonics) used in growing pumpkins, squash, and beans, and keeps water bodies and stream safe. So, environmental savior.
Snake gourd is a summer fruit vine. The Trichosanthes cucumerina vine cannot be used for testing on other fruit vines and trees that bloom in the winter. The only way to test on them is to use the vine leaves and fruits oils/extracts with the aroma intact or a synthetically prepared compound with the same aroma.
Snake Gourd Extracts/Oils Bee Population Savior
Almonds are 100%, and 90% of apples, blueberries, and avocados 90% pollinated by bees. Out of every four bites of food, one bite is bees' contribution. If bees are gone from the agriculture sector, food prices will soar up ten time or more. Many US commercial farms use the pesticides called neonicotinoids (neonics) that have led to mass deaths of these pollinators. Pollen grains contain trace amounts of pesticide. Pollen is carried to beehives for food accumulating it to a critical level within the beeswax. Pesticides affect bees in many ways—their sole chemical and physical signals-based communication, foraging behavior, and their larval development. Further, pesticides lower the bees immune systems, weaken the hive, and leave it wide open to parasitic infection. (https://www.planetbee.org/why-bees-are-dying (https://secure.foodandwaterwatch.org/act/epa-save-bees?gclid=CjwKCAjw9e6SBhB2EiwA5myr9jVUJqntQcQVv4ed3ZTZ5iZHjNxgp0B-JFuQrZhqqYqFXNZQaCSm7BoCO_QQAvD_BwE).
Since the snake guard vines are not harmful to any living beings, bees are not going to be affected.
Snake Gourd Extracts/Oils Reduces Water Resources Contamination
In their fact Fact Sheet “The Quality of Our Nations Waters—Pesticides in the Nation's Streams and Ground Water, 1992-2001.”—USGS highlights national findings on pesticide occurrence, distribution and sources, and the potential for effects on humans, aquatic life, and fish-eating wildlife. Pesticides accumulate in stream-drained watersheds in substantial agricultural or urban areas to a greater level than groundwater (
Snake Gourd Extracts/Oils Human-, Aquatics-, and Wildlife-Friendly
Human-health benchmarks were seldom exceeded in ground water. One or more pesticides exceeded a benchmark in about 1 percent of the 2,356 domestic and 364 public-supply wells that were sampled. The greatest proportion of wells with a pesticide concentration greater than a benchmark was for those tapping shallow ground water beneath urban areas (4.8 percent). The urban wells with benchmark exceedances included 1 public-supply, 3 domestic, and 37 observation wells. All concentrations greater than a benchmark were accounted for by dieldrin (72 wells), dinoseb (4), atrazine (4), lindane (2), and diazinon (1). Pesticides typically found in trace levels raise concerns for their potential effects of chronic health problem from long-term use at relatively low concentration.