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Possible causes for flower drop in Papaya! Preventive measures

Posted by Sanjeeva Reddy on

     Papaya flowers And fruits

Papaya [Carica papaya] plants or trees may be categorized to male, female or hermaphrodite trees based on type of flowers they produce. As indicated above depending on the tree's type or gender, the flowers and fruit (if found) vary in appearance, function and size. Typically, a papaya plant’s gender may change depending on the temperature during the developmental stages.

 Types of Papaya plants

Causes of Flower Drop

1. Temperature and relative humidity [RH] the environmental temperature and RH especially micro climate near and around flowers must be in range of 200C to 330C and 70 % to 85 % respectively. Lesser and higher than the range affects the pollination, fertilization of papaya fruits and flowers may drop off with forming to the fruit.

        Weather conditions responsible for flower drop in Papaya

Chemical growth regulators can sometimes help overcome low temperature effect but the fruit developed will be seedless or may be of poor quality.

   Growth promoters to fight stress in papaya plant to reduce the stress

 

 

2. Cultural - lack or excess of nitrogen [N] fertility. Low and high dose of nitrogen may cause flower drop. The toxicity may be the direct effect for flower abortion. Ammoniacal nitrogen at even medium level has got indirect effect on flower setting and fruit setting.

      Ammonia nitrogen sources for Papaya which may cause flower drop

    Indirectly ammoniacal nitrogen triggers the regular viral infections which may also result in flower dropping. Manganese micro-nutrient spray on high nitrogen doses may manage viral infections on papaya plants.

              Manganese nutrient for managing the papaya flower drop

 

3. Lack of water and excessive moisture may affect the flower development, pollination, fertilization and fruit setting. Uneven water supply to the papaya plants/ trees induces stress leading to uneven flowering and fruit setting.

               Sufficient irrigation for the Papaya crop for proper flowering and retaining of the flowers

 

4. Reduced or extended light exposure has adverse effect and may affect the flower development, pollination, fertilization and fruit setting.

             light for papaya crop flowering

 

 5. Excessive wind naturally causes physical damage and pollens to swipe off leading to poor pollination and fertilization.

            Damage due to Wind in Papaya

 

6. Insect damage particularly by the flower feeders, fruit feeders and probably by chewing type insects will affect the flower health.

7.Foliar diseases Fungal infections like Powdery mildew, Downy mildew, Black spot; bacterial infections like bacterial spot, speck disease and viral infections like Papaya Ring spot infections, Curl leaf viral infections  

 Papaya diseases which may be reason for flower dropping

8. Nutrient deficiency especially with micronutrients like Boron and Calcium in case of sandy and light soils with poor water and nutrient holding capacities.

  Nutrient deficiency in papaya also cause flower dropping

The controllable things possible practically, the disease and pest management may be monitored for avoiding the flower drop and get maximum yield. Proper balanced nutrient management may also help to get good flower health and better fruit setting in papaya crop.

               Nutrient management for the Papaya crop  Biofertilizers and Organic matter for Papaya crop  

 

Sprays to prevent flower dropping in Papaya crop

Check out for moisture in soil and atmosphere; temperature extremities and also go for the following sprays to keep away the diseases [Powdery, Downy, Spot diseases, Bacterial diseases..etc] and also supplement the required nutrients for proper flower and fruit setting.

 

Combination 1

Blitox 2 gm/L + Plantomycin 0.5gm/L + Magnum Mn 0.5 gm/L + V Zyme- 2 mL/L

  Spray to manage the flower drop in Papaya crop

Combination 2

Ridomet 0.5 gm/L + Confidor 0.5 mL/L + Boron 20% 1 gm/L + Econeem plus 1% 1 mL/L

 Spray 2 to manage the flower drop in Papaya crop

Combination 3

Avtar 2 gm/L + Anant 0.5 gm/L + Ahaar 2 mL/L + Econeem plus 1% 1 mL/L

 Spray to manage the flower drop in Papaya crop

Above sprays may be sprayed for the control of flower dropping or abortion. The combinations will control sucking pests like thrips, aphids; powdery, downy mildew and other fungal & Bacterial diseases; also supplement some essential nutrients for better flower initiation and fruit setting and avoid flower or fruit droppings.

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For more information kindly call on 8050797979 or give missed call on 180030002434 during office hours 10 AM to 5 PM

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Disclaimer: The performance of the product(s) is subject to usage as per manufacturer guidelines. Read enclosed leaflet of the product(s) carefully before use. The use of this product(s) /information is at the discretion of user.


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2 comments

  • Thank you Mr. Reddy garu for being with us. Happy to serve you. You feed back really enticing our team to work in enthusiasm.
    Kindly visit playstore and get your BigHaat App updated. We have enable with latest features like Crop doctor and Kisan Vedika which may benefit the farmers and refer to family and friends to download the App and get the advantages.
    Thank you again.

    Sanjeeva Reddy on
  • Very good products

    svprathapreddy Reddy on

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